What debugging techniques can be used to identify errors in PHP code related to array manipulation?

When debugging PHP code related to array manipulation, some techniques that can be used include: 1. Printing out the array using var_dump() or print_r() to see its structure and contents. 2. Checking for syntax errors such as missing brackets or semicolons. 3. Using foreach loops to iterate through the array elements and check for unexpected values.

// Example PHP code snippet to debug array manipulation issues
$array = [1, 2, 3, 4, 5];

// Print out the array structure and contents
var_dump($array);

// Iterate through the array elements using a foreach loop
foreach ($array as $element) {
    echo $element . "\n";
}